Advantages of PE Plastic Shopping Bags

Advantages of PE plastic shopping bags
PE bags are excellent in corrosion resistance and electrical insulation (especially high-frequency insulation), and can be modified by chemical cross-linking and radiation cross-linking, and can be reinforced with glass fibers. High pressure polyethylene has high melting point, high hardness, high strength, low water absorption, good electrical function, high radiation strength, high impact resistance, fatigue, wear resistance, impact resistance, corrosion resistance, high elongation, high impact resistance, Leak resistance, corrosion resistance and other advantages.
1. Crystalline material, with low moisture absorption, does not need to be abundant and dry, has good fluidity and is sensitive to pressure. It is advisable to use high pressure injection during molding, the material temperature is uniform, the filling speed is fast, and the pressure is sufficient. uniform, internal stress. Pay attention to the selection of the gate position to avoid shrinkage and deformation.
2. The shortening range and shortening value are large, the directionality is obvious, and it is easy to deform and warp. The speed should be slow, the mold is set with cold material, and there is a cooling system.
3. The heating time should not be too long, otherwise it will break down.
4. When the soft plastic parts have shallow side grooves, they can be forcibly demolded.
5. Melt rupture may occur, and it should not be contacted with organic solvents to prevent cracking.
advantage
1. Abrasion/scratch resistance, providing long-term protection for many highly finished surfaces.
2. Impact resistance, maintain the integrity of the appearance in many applications where the impact is not very strong.
3. It is resistant to puncture and can form a tough barrier to the liquid, so that it cannot corrode the product.
4. Flexibility, can adapt to most surface shapes.
5. Easy to use, polyurethane provides a solution for many demanding applications.
6. Non-volatile organic components will not release volatile organic components during use.